Pregnant women require only a slight increase in energy, from 100 kcal per day during the first
trimester to 300 kcal during the second and third trimesters. Pregnant women require 10–15%
more kilocalories than before pregnancy, especially during the last months of pregnancy. This
amount of energy can be provided by only a small quantity of food; expectant mothers
frequently overestimate their need for additional energy. The recommended increase depends
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on the basal metabolic rate, lifestyle and physical activity. The main indicator is the increase in
the body mass of the pregnant woman, which should remain within the recommended range of
10–16; this range is based on guidance from a German national consensus, the Nordic nutrition
recommendations and the Institute of Medicine (USA). The recommendations of professional
associations and institutions, however, differ significantly. We were unable to analyse weight
gain during pregnancy, the prevalence of overweight and obesity and the associated health risks
in Latvia, as data are not available. The recommended range of weight gain is therefore based
mainly on European national guidance with reference to the approach in the USA: the desirable
weight gain depends on the BMI before conception.
Educational outreach and health promotion help in achieving a normal pre-‐pregnancy weight,
which is important for fertility, a successful pregnancy and delivery and the future health of the
offspring.
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